Rendering-tank.



PATRNTRD MAR. 12, 1907.

P. G. WISRLOGRL. RENDERING TANK.

-APPLIOATION FILED 0O'1.8, 1906.

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No. 846,539. 4 PATENTBD MAR.Y12, 1907.

` 4 F. G.`WISBLOGBL.

RENDERING TANK.

APPLICATION FILED 00T.B. 1906.

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UNITED u HPRrENT OFFICE.

FREDERICK G. WISELOGEL, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO UNITEDSTATES CONSTRUCTION AND UTILIZATION COMPANY, OF ROCH- ESTER, NEW YORK, ACORPORATION OF NEW YORK.

RENDERING-TANK.

Specification of Letters Patent.

Patented March 12, 1907.

Application iiled October 8,1906. Serial No. 338,066.

To all whom, t may concern.-

Be it known that I, FREDERICK G. Wisn- LoGEL, a citizen of the UnitedStates, residing at Indianapolis, in the county of Marion and State ofIndiana, have invented certain new and useful Improvements in Rendering-Tanks, of which the following is a specification.

The object of my invention is to provide a tank for extracting greasefrom garbage and all kinds of animal matter.

The accompanying drawings illustrate my invention.

Figure 1 is a longitudinal vertical section on line 1 1 of Fig. 2. Fig.2 is a transverse section on line 2 2 of Fig. 1. Fig. 3 is an endelevation, and Eig. 4 a detail on line 4 of Fig. f1.

In the drawings, 10 indicates a cylindrical tank having in its lowerside a longitudinal opening 11. Secured to the under side of cylinder 10is a plate l2, which is of sharper curvature than cylinder 10, so as toform a steam chamber or jacket 13 therebeneath, said chamber extendingbeneath the opening 11. Steam is supplied to jacket 13 through suitablepipes, as shown in Fig. 1. Plate l2 is provided with a central opening14, which is surrounded by a Range-casting 15, covered by a cover-plate16. Plate 16 is supported by a pair of adjusting-screws 17, carried by atransverse arm 18, held in place by apair of removable pins 19.Connected to cover 16 by suitable links 2O is a perforated plate 21 of alength substantially equal to the opening 14 and of a widthsubstantially equal to the width of slot 11. At the ends of plate 21slot 11 is bridged by removable perforated plates 22, the edges of whichrest u on struts 23, which join the edges of the Wall of drum 10adjacent slot 11 with the underlying plate 12. dome 25, through whichmaterial may be introduced, said dome being closed by suitable cover 26.Journaled within drum 10 is a stirrer-shaft 27, rovided withstirrer-arms 28, which travel c ose to the Wall of the drum. Shaft 27 isrotated by any suitable meanssuch, for instance, as gear 29.

Leading from dome 25 is an exhaust-pipe 30, provided with a valve 31,through which Drum 10 is also provided with a' a large exhaust may behad when the tank is being first heated. Connecting pipe 30 around valve31 is a by-pass 32, provided with a small valve 38, through which asmall exhaust, su'Hicient to prevent the steam from becoming dead, maybe had during the continued operation, valve 31 being closed.

In operation the material, such as garbage or other matter, isintroduced into drumV 10 through dome 25, and after all of the variousopenings are tightly closed steam is admitted into the chamber 13, saidsteam passing through perforated plates 21 and 22 and mingling with thematerial as said material is stirred by the paddles 28. The mass is thusthoroughly heated, and the fats pass through the perforated plates 21and 22 into the chamber 1 3 from which they may be Withdrawn by removingdoor 16 or through suitable pi es. The mass after being treated iseasily withdrawn through manhole 24.

I claim as my invention- 1. In a rendering-tank, the combination, with areceiving-body having a slot in its lower side, and stirring mechanismmounted in the body, of a steam-jacket embracing the lower side of saidbody under the slot and having an 'opening in its side opposite the saidslot, a cover for said opening, and a removable perforated platebridging the slot in the main body.

2. In a rendering-tank, the combination, with `the receiving-tank andstirring mechanism mounted therein, said tank having a longitudinal slotextending through the bottom of said tank, of a steam-jacket embracingthe lower side of said tank and covering said slot, and said jackethaving an opening leading thereinto, a cover for said opening, aperforated late carried by said cover and normally yin in thebefore-mentioned slot so as to bridge t e same, and removable perforatedplates bridging said slot at the ends of the perforated plate carried bysaid cover.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 20th day of September, A. D. 1906.

FREDERICK e. Wiseman. [L s] Witnesses:

ARTHUR M. Hoon, THOMAS W. MoMEANs.

